CN212011916U - Overhead transmission line ranging device - Google Patents

Abstract

The utility model discloses an overhead transmission line distance measuring device, which comprises a distance measuring device main body hung on a transmission line, wherein the distance measuring device main body comprises a distance measuring device fixed in the distance measuring device main body, a first travelling mechanism and a second travelling mechanism which are respectively arranged at the front end and the rear end of the distance measuring device and used for drawing the distance measuring device main body to travel on the transmission line, and a first deicer and a second deicer which are respectively arranged at the front end and the rear end of the distance measuring device main body; the bottom of the distance measuring device main body is provided with a microwave sensor, an environmental parameter detection unit and an inclination sensor; a singlechip and a wireless communication unit are arranged in the distance measuring device main body, wherein the singlechip is respectively connected with the microwave sensor, the environmental parameter detection unit and the inclination sensor, and the wireless communication unit is connected with the singlechip; the electricity taking device is used for supplying power to the distance measuring device after being processed by the power supply unit.

Description

Overhead transmission line ranging device

technical field

The utility model relates to a distance measuring device for overhead transmission lines.

Background technique

With the rapid development of my country's power industry, people have higher and higher requirements for the safety and reliability of power systems. High-voltage overhead transmission lines are one of the important components of the power transmission system. In order to ensure the safety and reliability of the power system, real-time and effective monitoring of high-voltage overhead transmission lines is required. Sag detection is one of the important contents of transmission line monitoring. Sag refers to the vertical distance between the lowest point of the wire and the connection between the two suspension points when the suspension height of the wire on the two adjacent base poles is the same on the flat ground. Generally, when the transmission distance is long, due to the weight of the wire, sag will be formed, making the wire take the shape of a catenary. If the sag is too small, it will increase the load of the tower, which may lead to accidents such as disconnection, tower collapse and string drop; if the sag is too large, the wires will come into contact with trees, buildings, etc. Trip power outage. Because the transmission line is affected by the natural environment for a long time, the arc sag will change to a certain extent, and then the arc sag needs to be detected to ensure the safe operation of the transmission line. At present, the sag monitoring of transmission lines mainly adopts the manual inspection method, and the manual detection method is inefficient and the accuracy is not very high.

Utility model content

The purpose of the utility model is to provide a distance measuring device for overhead transmission lines, so as to solve the problem of low detection efficiency of sag detection of overhead transmission lines.

In order to solve the above technical problems, the present utility model provides a distance measuring device for overhead transmission lines, which includes a distance measuring device main body hung on the transmission line, and the distance measuring device main body includes a power fetching device fixed in the distance measuring device main body, The first traveling mechanism and the second traveling mechanism are respectively arranged at the front end and the rear end of the power fetching device for pulling the main body of the distance measuring device to walk on the transmission line, and the first deicer and the second walking mechanism are respectively installed on the front and rear ends of the main body of the distance measuring device. Two de-icers; a microwave sensor, an environmental parameter detection unit and an inclination sensor are installed at the bottom of the main body of the ranging device; a single-chip microcomputer connected to the microwave sensor, the environmental parameter detection unit and the inclination sensor is installed in the main body of the ranging device, respectively. and a wireless communication unit connected with the single-chip microcomputer; the electric power fetching device supplies power to the ranging device after being processed by the power supply unit.

Further, the environmental parameter detection unit includes a humidity sensor and a temperature sensor which are respectively associated with the microcontroller.

Further, the main body of the ranging device is provided with a broadcaster electrically connected to the single chip microcomputer.

Further, the first de-icer and the second de-icer have the same structure, and both include a heating jacket of a first wire passage matched with a power transmission line, and the inner cavity of the heating jacket is connected to the fan through an air supply pipe. ; The side part of the first wire passage is provided with an opening for upper and lower wires, and the power transmission line enters and exits the first wire passage through the opening; a heating wire is arranged in the heating jacket, and the heating wire is controlled by temperature. The temperature controller and the extension unit are electrically connected with the output end of the single-chip microcomputer.

Further, a horizontally arranged first cutting blade is installed on the front side of the first deicer, and the edge of the first cutting blade faces the front side of the first deicer; A second cutting blade arranged horizontally is installed on the rear side, and the cutting edge of the second cutting blade faces the rear side of the second deicer.

Further, the electrical outlet includes an upper casing and a lower casing that are detachably connected; a groove is formed in the middle of the surface of the lower casing that is in contact with the upper casing, and the upper casing and the groove form a first groove. Two wire passages, the power transmission line is placed in the second wire passage passage; the deicer includes a heating jacket, and the power supply unit includes an inductive power taking module for inductively taking power from the power transmission line, and an inductive power taking module connected with the inductive power A power supply circuit connected to a power taking module; the induction power taking module includes an upper electromagnetic induction iron core with a straight cross section and a lower electromagnetic induction iron core with a U-shaped cross section, the upper electromagnetic induction iron core and the lower electromagnetic induction iron The core is surrounded by a four-frame structure with an air gap in section, the transmission line is arranged in the middle of the four-frame structure, and an induction coil is wound around the lower electromagnetic induction iron core; the power supply circuit includes a rectifier circuit, a front-end voltage regulator connected in sequence circuit and voltage conversion circuit, the input end of the rectifier circuit is connected to the secondary winding of the induction power taking module; the upper electromagnetic induction iron core is built in the upper casing, and the lower electromagnetic induction iron core is built in the lower casing in vivo.

Further, the main body of the distance measuring device is also provided with a GPS module connected with the single-chip microcomputer.

The beneficial effects of the utility model are as follows: the distance measuring device is suspended on the overhead transmission line during use, and the inclination sensor is arranged to sense whether the main body of the distance measuring device is in a parallel state, so as to ensure that the main body of the distance measuring device can be at the center point of the sag, so as to avoid Improve the measurement accuracy; when the main body of the distance measuring device is at the center point of the sag, start the microwave sensor set downward to measure the distance between the main body of the distance measuring device and the ground or obstacles below, and then the lowest point of the wire and the ground or below can be obtained. distance between obstacles. In addition, a deicer and a cutting knife are respectively provided at the front and rear of the distance measuring device, which can perform deicing and obstacle clearance operations on the overhead transmission line under the traction of the traveling mechanism.

Description of drawings

The accompanying drawings described herein are used to provide a further understanding of the application and constitute a part of this application, and the same reference numerals are used in these drawings to refer to the same or similar parts. For the purpose of interpreting this application, it does not constitute an improper limitation to this application. In the attached image:

FIG. 1 is a schematic structural diagram of an embodiment of the present invention.

FIG. 2 is a schematic structural diagram of a deicer according to an embodiment of the present invention.

FIG. 3 is a schematic structural diagram of a power drawer according to an embodiment of the present invention.

1. First deicer; 11. Heating jacket; 12. Air supply pipe; 13. Fan; 14. Heating wire; 15. Temperature controller; 16. First wire passage; 17. Opening; 2. Section 1. Traveling wheel; 21. The first driving motor; 3. The electrical appliance; 31. The second wire passage; 32. The upper shell; 33. The lower shell; 4. The second traveling wheel; 41. The second driving motor; 5. Second de-icer; 6. Power supply circuit; 61. Upper electromagnetic induction iron core; 62. Lower electromagnetic induction iron core; 63. Induction coil; 7. Single chip computer; 71. Microwave sensor; 72. Wireless communication unit; 73 74, temperature sensor; 75, tilt sensor; 8, first cutting knife; 81, second cutting knife; 9, broadcaster.

Detailed ways

The overhead transmission line ranging device as shown in FIG. 1 includes a ranging device main body hung on the transmission line. The ranging device main body includes a power fetching device 3 fixed in the ranging device main body, respectively disposed in the power taking The front and rear ends of 3 are used to pull the first and second running mechanisms of the distance measuring device main body to walk on the power line, and the first and second deicers 1 and 2 respectively installed on the front and rear ends of the distance measuring device main body. A microwave sensor 71, an environmental parameter detection unit and an inclination sensor 75 are installed on the bottom of the main body of the ranging device; the main body of the ranging device is provided with a connection to the microwave sensor 71, the environmental parameter detection unit and the inclination sensor 75 respectively. The single-chip microcomputer 7 and the wireless communication unit 72 connected with the single-chip microcomputer 7; the electric power taking device 3 supplies power to the ranging device after being processed by the power supply unit. The traveling mechanism includes a traveling wheel matched with the power transmission line and a driving motor for driving the traveling wheel to travel. Wherein, the front side and the rear side mentioned in this application are not fixed, and the front and rear sides of the distance measuring device main body described in this application are the front and rear sides relative to the running direction of the distance measuring device main body.

When in use, the ranging device is suspended on the overhead transmission line, and the inclination sensor 75 is provided to sense whether the main body of the ranging device is in a parallel state, so as to ensure that the main body of the ranging device can be at the center point of the sag, so as to improve the measurement accuracy; When the main body of the device is at the center point of the sag, start the microwave sensor 71 facing downward to measure the distance between the main body of the ranging device and the ground or the obstacle below, and then the distance between the lowest point of the wire and the ground or the obstacle below can be obtained. . In addition, a deicer and a cutting knife are respectively provided at the front and rear of the distance measuring device, which can perform deicing and obstacle clearance operations on the overhead transmission line under the traction of the traveling mechanism.

According to an embodiment of the present application, the environmental parameter detection unit includes a humidity sensor 73 and a temperature sensor 74 which are respectively connected with the microcontroller 7 . The current ambient temperature and humidity are collected by the humidity sensor 73 and the temperature sensor 74, and the staff can judge whether the transmission line is frozen according to the collected temperature and humidity. When the temperature is below zero and the humidity is greater than the freezing threshold, the power transmission line can be judged. The line is frozen, and the running mechanism and the deicer are started through the microcontroller 7 to perform the deicing operation. It stops when the temperature is above zero or the humidity is below the freezing threshold.

According to an embodiment of the present application, the main body of the ranging device is provided with a broadcaster 9 that is electrically connected to the single chip 7 , and the main body of the ranging device can perform voice broadcasts at regular intervals to effectively repel birds.

According to an embodiment of the present application, the first deicer 1 and the second deicer 5 have the same structure. As shown in FIG. 2 , they both include a heating jacket 11 with a first wire passage 16 matched with a power line. , the inner cavity of the heating jacket 11 is connected with the fan 13 through the air supply pipe 12; the side part of the first wire passage 16 is provided with an opening 17 which is convenient for upper and lower wires, and the power transmission line enters and exits through the opening 17 The first wire passage 16; the heating jacket 11 is provided with a heating wire 14, the temperature of the heating wire 14 is adjusted by the temperature controller 15; the temperature controller 15 and the extension are electrically connected to the output end of the single-chip microcomputer 7 . The present application uses thermal radiation to clear the icing on the surface of the power transmission wire, and the deicer can implement deicing under the live condition of the power transmission line, thereby ensuring the stable operation of the power grid.

According to an embodiment of the present application, a horizontally arranged first cutting blade 8 is installed on the front side of the first deicer 1 , and the cutting edge of the first cutting blade 8 faces the front side of the first deicer 1 . ; The rear side of the second deicer 5 is provided with a second cutting blade 81 arranged horizontally, and the edge of the second cutting blade 81 faces the rear side of the second deicer 5 . During the running process of the main body of the distance measuring device, the obstacles hanging on the power line can also be cut by a cutting knife, and the cutting knife is detachably installed on the main body of the distance measuring device for easy replacement.

According to an embodiment of the present application, as shown in FIG. 3 , the electrical outlet 3 includes an upper casing 32 and a lower casing 33 that are detachably connected; the side of the lower casing 33 in contact with the upper casing 32 There is a groove in the middle, the upper casing 32 and the groove form a second wire passage 31, and the power transmission line is placed in the second wire passage 31; the deicer includes a heating jacket 11, and the power supply The unit includes an inductive power taking module for inductively taking electricity from the transmission line and a power supply circuit 6 connected to the inductive power taking module; the inductive power taking module includes an upper electromagnetic induction iron core 61 with a cross section and a cross section. The U-shaped lower electromagnetic induction iron core 62, the upper electromagnetic induction iron core 61 and the lower electromagnetic induction iron core 62 enclose a four-frame structure with an air gap in cross-section, and the transmission line is arranged in the middle of the four-frame structure, The lower electromagnetic induction iron core 62 is wound with an induction coil 63; the power supply circuit 6 includes a rectifier circuit, a front-end voltage stabilizer circuit and a voltage conversion circuit which are connected in sequence, and the input end of the rectifier circuit is connected to the secondary side of the induction power taking module. The upper electromagnetic induction iron core 61 is built in the upper casing 32 , and the lower electromagnetic induction iron core 62 is built in the lower casing 33 . The present application provides a long-term and stable power supply guarantee for the ranging equipment by means of inductive power taking, and ensures the safe operation of the transmission line.

According to an embodiment of the present application, the main body of the ranging device is further provided with a GPS module connected to the single-chip microcomputer, which can facilitate the positioning of the main body of the ranging device and facilitate maintenance.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should The technical solutions are modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present invention, and all of them should be included in the scope of the claims of the present invention.

Claims (7)

1. A distance measuring device for overhead transmission lines, characterized in that it comprises a distance measuring device main body hung on a power transmission line, and the distance measuring device main body comprises an electric fetcher fixed in the The front end and the rear end of the electrical appliance are used to pull the first and second running mechanisms of the distance measuring device body to walk on the power line, and the first and second de-icers respectively installed on the front and rear ends of the distance measuring device body. A microwave sensor, an environmental parameter detection unit and an inclination sensor are installed at the bottom of the main body of the ranging device; a single-chip microcomputer connected to the microwave sensor, the environmental parameter detection unit and the inclination sensor respectively is arranged in the main body of the ranging device, and a single chip connected to the A wireless communication unit connected to the single-chip microcomputer; the electric power fetching device supplies power to the ranging device after being processed by the power supply unit. 2 . The distance measuring device for overhead transmission lines according to claim 1 , wherein the environmental parameter detection unit comprises a humidity sensor and a temperature sensor, which are respectively connected with the single-chip microcomputer. 3 . 3 . The overhead transmission line ranging device according to claim 1 , wherein the main body of the ranging device is provided with a broadcaster that is electrically connected to the single-chip microcomputer. 4 . 4 . The distance measuring device for overhead transmission lines according to claim 1 , wherein the first de-icer and the second de-icer have the same structure, and both include heating of the first wire passage matched with the transmission line. 5 . The inner cavity of the heating jacket is connected with the fan through the air supply pipe; the side of the first wire passage is provided with an opening for upper and lower wires, and the transmission wire enters and exits the first wire passage through the opening; A heating wire is arranged in the heating jacket, and the temperature of the heating wire is adjusted by a temperature controller; the temperature controller and the extension are electrically connected with the output end of the single-chip microcomputer. 5 . The distance measuring device for overhead transmission lines according to claim 1 , wherein a horizontally arranged first cutting blade is installed on the front side of the first deicer, and the blade of the first cutting blade faces toward the The front side of the first deicer; the rear side of the second deicer is provided with a horizontally arranged second cutting blade, and the blade of the second cutting blade faces the rear side of the second deicer. 6 . The distance measuring device for overhead power transmission lines according to claim 1 , wherein the power take-off comprises an upper casing and a lower casing that are detachably connected; the lower casing is in contact with the upper casing. 7 . There is a groove in the middle of one surface, the upper casing and the groove form a second wire passage, and the power transmission line is placed in the second wire passage; the deicer includes a heating jacket, and the power supply unit includes a Inductive power-taking module for inductively taking electricity from transmission lines and a power supply circuit connected to the inductive power-taking module; the inductive power taking module comprises an upper electromagnetic induction iron core with a straight cross section and a lower section with a U-shaped section. The electromagnetic induction iron core, the upper electromagnetic induction iron core and the lower electromagnetic induction iron core form a four-frame structure with an air gap in cross section, the transmission line is arranged in the middle of the four-frame structure, and the lower electromagnetic induction iron core is wound with a an induction coil; the power supply circuit includes a rectifier circuit, a front-end voltage regulator circuit and a voltage conversion circuit that are connected in sequence, and the input end of the rectifier circuit is connected to the secondary winding of the induction power taking module; the upper electromagnetic induction iron core is built in In the upper casing, the lower electromagnetic induction iron core is built in the lower casing. 7 . The overhead transmission line ranging device according to claim 1 , wherein the main body of the ranging device is further provided with a GPS module connected to the single-chip microcomputer. 8 .

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